Strainer for mining-machines.



A. E. MAHER.

STRAINER FOR MINING MACHINES.

APPLICATION FILED NOV.7, 1912.

Patented July 14, 1914.

2 SHEETSSHEET 1.

vwemtoz fig elk (mu wi/mwwo :IE NORRIS PETERS 60.. PHOTO-LI'IHG., WASHINGTON. D C

A. E. MAKER.

TRAINER FOR MINING MACHINES.

APPLICATION FILED Nov. 7, 1912.

Patented July 14, 1914.

2 SHEETS-SHEET Z.

@XMJMMM THE NORRIS PETERS CD, PHOTO-LI'IHQ. WASHINGTON, D. C.

ARTHUR E. MAI-KER, OF GREENSBUBG, PENNSYLVANIA.

STB/AINEB FOR MINING-MACHINES.

mosses.

Application filed November '7, 1912.

To all whom it may concern Be it known that I, ARTHUR E. MAHER, a citizen of the United States of America, residing at Greensburg, in the county of Westmoreland and State of Pennsylvania, have invented certain new and useful Im provements in Strainers for Mining-Machines, of which the following is a specification.

The invention relates to strainers and more particularly to the class of air strainers for use with compressed air mining machines.

The primary object of the invention is the provision of a strainer of this character wherein the compressed air for driving the mining machines, for instance, an air pick machine, will be thoroughly strained, so as to prevent any particles of coal, dust, dirt or any other foreign matter collecting in the machines, thereby avoiding damage to the same and assuring increased life to the said machine.

Another object of the invention is the provision of a machine of this character wherein the same can be readily placed within the air supply hose, so that said strainer can be easily and quickly removed for the cleaning thereof.

It. further object of the invention is the provision of a strainer of this character wherein the necessity of cleaning the mining machine is avoided, as the said strainer will prevent coal particles, dirt, dust or other foreign matter from passing into the machine, should said matter get into the hose supplying compressed air to the machine, when the latter is being moved from one point to another, thereby obviating the cloging of the machine.

A still further object of the invention is the provision of a strainer of this character, which is extremely simple in construction, thoroughly reliable and efiicient in operation, readily and easily cleaned, and one which may be manufactured at a minimum cost.

With these and other objects in view, the invention consists in the construction, combination and arrangement of parts as will be hereinafter more fully described, illustrated in the accompanying drawings, forming a part of this specification, and in the clai1n hereunto appended.

In the drawing: Figure 1, is a side elevation of a compressed air pick machine, showing the air supply hose connected therewith Specification of Letters Patent.

Patented July 14, 1914.

' Serial No. 730,011.

and the strainer constructed in accordance with the invention applied to the hose. Fig.

2 is an enlarged vertical longitudinal sectional view through the strainer and its C215.- ing. Fig. 3, is an end elevation of the strainer. Fig. 1, is a similar view looking toward the opposite end of the said strainer. Fig. 5, is a sectional view on the line 5-5 of Fig. 2.

Similar reference characters indicate corresponding parts throughout the several views in the drawings.

Referring to the drawings by numerals, the compressed air pick mining machine is designated generally by 10, which machine is of the ordinary well known construction, having at each side a supporting wheel 11, so that it may be readily brought into proper working position or transported from one point to another when required. Suitably connected with the machine 10 is an air hose 12, which has communication with an air pipe 13, the same leading from any suitable air compressor (not shown). Arranged between the hose 12 and pipe 13 and connecting the same is the strainer hereinafter described.

The strainer comprises a cylindrical casing 14, having detachably threaded on opposite ends reducer caps or heads 15 and 16, respectively, the former of which has engaged therein a detachable coupling 17, for connection with the air pipe 13, while the latter head or reducer cap 16, has engaged therein a nipple 18, to which is adapted to be connected the hose 12. Thus in this man ner the compressed air will pass through the strainer before entering the pick machine for operating the same.

Removably held within the casing 1a is a strainer frame comprising spaced reticulated or perforated disks 19 and 20, respectively, which are connected by means of tie rods 21 provided with reduced ends which fit into suitable openings in the disks. These ends are riveted in the said disks near the peripheries thereof, while mounted upon the innermost face of the disk 20 and secured thereto by engagement beneath the shoulders formed by the reduced ends of said rods is a wire-mesh fabric or mesh screen 22, which is designed to filter the air passing through the strainer, thereby preventing fine particles from entering the machine, and likewise the disks 19 and 20 obviate the passing of larger particles into the latter, thus assuring against clogging of the machine or otherwise damaging thereof from coal deposits, dirt or other foreign matter.

Formed internally of the casing 14 near one end thereof are opposed bearing lugs or projections 23, against which one end of the strainer-frames rests, while mounted in the reducer cap or head at the oppositeend of the casing 14- is a resilient ring like cushion- 24 against which abuts the other end of the vstrainer frame, so that on the tightening of The strainer frame can be readily and easily removed from the casing 14 on the detachment of the reducer caps or heads carried at opposite ends thereof, so that the said frame maybe thoroughly cleaned to remove particles clinging to the disks l9 and 20 of the frame, thereby sustaining the machine cleanandfree from coal, dirt or other foreign matter, to avoid clogging of the said machine While in operation. It is to be further understood however that the screening element may be partially cleaned or in other words relieved of the dust and dirt while the machine is in operation without disassembling any of the parts, by merely loosening the cap 16. Obviously when the cap 16 is loosened the cushioning element 0r ring 24 is moved out of engagement with the end of the casing 14 and the disk20 thus permitting the screening element to reciprocate within the casing while the machine is in operation, and When the disks abut disks operatively associated The combination with a pair of i: alined' pipes; of a cylindrical casing exteriorly threaded at opposite ends, caps having enlarged inner end portions receiving the threaded ends of the casing and also having reduced portions receiving the ends adjacent thereto of the pipes, the said reduced por tions forming internal shoulders at their point of juncture with said enlarged portions, diametrically opposed lugs projecting I inwardly adjacent one end of the casing spaced. perforated disks snugly fitted in the ends of the casing, rods connecting the disks; one ofsaid disks bearing against said lugs, a resilient cushioning element abutting against the other of said disks and said internal shoulders of one of the caps to retain the within the cylinder, and a wire mesh fabric on the inner side of the disk next to the cushioning element.

In testimony whereof I affix my signature in presence of two Witnesses.

ARTHUR E. MAHER, Witnesses:

WVILLIAM S. HAINns V F. R. NEIDERHLEN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, D. 0. 

